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[Perf] Linux/x64: 62 Regressions on 1/6/2026 2:06:33 PM +00:00

arch-x64

area-System.Threading

os-linuxLinux OS (any supported distro)Linux OS (any supported distro)

runtime-coreclrspecific to the CoreCLR runtimespecific to the CoreCLR runtime

untriagedNew issue has not been triaged by the area ownerNew issue has not been triaged by the area owner

Status: Open.

#123159 In dotnet/runtime;

· performanceautofiler opened on Jan 13, 2026

Test failure: baseservices/threading/DeadThreads/DeadThreads/DeadThreads.cmd

arch-arm32

area-System.Threading

blocking-clean-ci-optionalBlocking optional rolling runsBlocking optional rolling runs

GCStress

os-linuxLinux OS (any supported distro)Linux OS (any supported distro)

untriagedNew issue has not been triaged by the area ownerNew issue has not been triaged by the area owner

Status: Open.

#122861 In dotnet/runtime;

· SakeTao opened on Jan 5, 2026

[Perf] Linux/x64: 7 Regressions on 12/11/2025 12:41:46 PM +00:00

arch-x64

area-System.Threading

os-linuxLinux OS (any supported distro)Linux OS (any supported distro)

runtime-coreclrspecific to the CoreCLR runtimespecific to the CoreCLR runtime

untriagedNew issue has not been triaged by the area ownerNew issue has not been triaged by the area owner

Status: Open.

#122592 In dotnet/runtime;

· performanceautofiler opened on Dec 16, 2025

Test failure: Loader/classloader/TypeInitialization/CircularCctors/CircularCctorFourThreads/CircularCctorFourThreads.cmd

arch-arm32

area-System.Threading

blocking-clean-ci-optionalBlocking optional rolling runsBlocking optional rolling runs

GCStress

os-linuxLinux OS (any supported distro)Linux OS (any supported distro)

untriagedNew issue has not been triaged by the area ownerNew issue has not been triaged by the area owner

Status: Open.

#122275 In dotnet/runtime;

· SakeTao opened on Dec 8, 2025

[Perf] Linux/arm64: 10 Regressions on 12/3/2025 12:01:02 AM +00:00

arch-arm64

area-System.Threading

os-linuxLinux OS (any supported distro)Linux OS (any supported distro)

runtime-coreclrspecific to the CoreCLR runtimespecific to the CoreCLR runtime

tenet-performancePerformance related issuePerformance related issue

tenet-performance-benchmarksIssue from performance benchmarkIssue from performance benchmark

untriagedNew issue has not been triaged by the area ownerNew issue has not been triaged by the area owner

Status: Open.

#122186 In dotnet/runtime;

· performanceautofiler opened on Dec 4, 2025

[Perf] Linux/x64: 35 Regressions on 11/27/2025 11:25:03 AM +00:00

arch-x64

area-CodeGen-coreclrCLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMICLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI

os-linuxLinux OS (any supported distro)Linux OS (any supported distro)

runtime-coreclrspecific to the CoreCLR runtimespecific to the CoreCLR runtime

tenet-performancePerformance related issuePerformance related issue

tenet-performance-benchmarksIssue from performance benchmarkIssue from performance benchmark

Status: Open.

#122103 In dotnet/runtime;

· performanceautofiler opened on Dec 2, 2025

·  

11.0.0

[Perf] Linux/x64: 1 Regression on 11/21/2025 7:55:45 AM +00:00

arch-x64

area-System.Buffers

os-linuxLinux OS (any supported distro)Linux OS (any supported distro)

runtime-coreclrspecific to the CoreCLR runtimespecific to the CoreCLR runtime

tenet-performancePerformance related issuePerformance related issue

tenet-performance-benchmarksIssue from performance benchmarkIssue from performance benchmark

untriagedNew issue has not been triaged by the area ownerNew issue has not been triaged by the area owner

Status: Open.

#121965 In dotnet/runtime;

· performanceautofiler opened on Nov 25, 2025

Codegen-emitted data blobs with relocs need to go to a RW blob

area-CodeGen-coreclrCLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMICLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI

os-linuxLinux OS (any supported distro)Linux OS (any supported distro)

os-mac-os-xmacOS aka OSXmacOS aka OSX

runtime-async

Status: Open.

#121871 In dotnet/runtime;

· MichalStrehovsky opened on Nov 21, 2025

·  

11.0.0

Slow but constant memory increase in .net web services on Linux

area-System.Net.Security

os-linuxLinux OS (any supported distro)Linux OS (any supported distro)

Status: Open.

#121827 In dotnet/runtime;

· fstugren opened on Nov 20, 2025

·  

11.0.0

[Perf] Linux/x64: System.Numerics.Tests.Perf_BigInteger Regressions on 11/10/2025 8:46:15 PM +00:00

arch-x64

area-System.Numerics

os-linuxLinux OS (any supported distro)Linux OS (any supported distro)

runtime-coreclrspecific to the CoreCLR runtimespecific to the CoreCLR runtime

tenet-performancePerformance related issuePerformance related issue

tenet-performance-benchmarksIssue from performance benchmarkIssue from performance benchmark

untriagedNew issue has not been triaged by the area ownerNew issue has not been triaged by the area owner

Status: Open.

#121750 In dotnet/runtime;

· performanceautofiler opened on Nov 18, 2025

Test failure: GC/API/GC/GetTotalAllocatedBytes/GetTotalAllocatedBytes.cmd

arch-arm32

area-System.Threading

blocking-clean-ci-optionalBlocking optional rolling runsBlocking optional rolling runs

JitStressCLR JIT issues involving JIT internal stress modesCLR JIT issues involving JIT internal stress modes

Known Build ErrorUse this to report build issues in the .NET Helix tabUse this to report build issues in the .NET Helix tab

os-linuxLinux OS (any supported distro)Linux OS (any supported distro)

untriagedNew issue has not been triaged by the area ownerNew issue has not been triaged by the area owner

Status: Open.

#121482 In dotnet/runtime;

· SakeTao opened on Nov 10, 2025

[Perf] Linux/arm64: 1 Regression on 10/28/2025 10:01:12 PM +00:00

arch-arm64

area-System.Net

os-linuxLinux OS (any supported distro)Linux OS (any supported distro)

runtime-coreclrspecific to the CoreCLR runtimespecific to the CoreCLR runtime

Status: Open.

#121413 In dotnet/runtime;

· performanceautofiler opened on Nov 6, 2025

·  

11.0.0